Colchuck Lake Saddle Dam

Colchuck Lake Saddle Dam is a rockfill dam located in Chelan County, Washington, built in 1930. It carries a Low hazard potential classification.

About Colchuck Lake Saddle Dam

The primary purpose of Colchuck Lake Saddle Dam is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Icicle & Peshastin Irrigation District (public utility). It impounds the Colchuck Creek near Leavenworth.

The dam stands 9 feet tall and stretches 130 feet across, creates a reservoir covering 78 acres, has a maximum storage capacity of 1,570 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1930, the structure is well-established, with more than 75 years of service.

This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. An emergency action plan is in place for this dam. The most recent inspection on record was 08/13/2018.

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Low Hazard ConditionEmergency Action Plan: Yes

Location

StateWashington
CountyChelan
Nearest CityLeavenworth
River/StreamColchuck Creek
Coordinates47.49476, -120.83613

Physical Characteristics

Dam TypeRockfill
NID Height9 ft
Dam Length130 ft
Year Completed1930 (96 years old)

Storage & Hydraulics

NID Storage1,570 acre-ft
Max Storage1,570 acre-ft
Normal Storage1,240 acre-ft
Surface Area78 acres
Drainage Area1 sq mi

Ownership & Safety

PurposeIrrigation
OwnerIcicle & Peshastin Irrigation District
Owner TypePublic Utility
Hazard ClassificationLow
Last Inspection08/13/2018
Emergency Action PlanYes

Identifiers

NID IDWA00226
Federal IDWA00226
More InfoState Dam Safety Program

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